CN108424062A - A kind of preparation process of environment-friendly type baking-free brick - Google Patents
A kind of preparation process of environment-friendly type baking-free brick Download PDFInfo
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- CN108424062A CN108424062A CN201810553689.9A CN201810553689A CN108424062A CN 108424062 A CN108424062 A CN 108424062A CN 201810553689 A CN201810553689 A CN 201810553689A CN 108424062 A CN108424062 A CN 108424062A
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- emergy
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1055—Coating or impregnating with inorganic materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of preparation processes of environment-friendly type baking-free brick, using iron tailings as primary raw material, to environmental protection important in inhibiting, meet the policy of the needs and " energy-saving and emission-reduction " of China's novel wall material development at this stage；Using flyash modified emergy, a large amount of flyash of emergy adsorption after being modified, flyash can be with Ca (OH) free in cement slurry2It reacts and to form calcium aluminosilicate etc. there is the substance of gelling, not only improve the compatibility of emergy and brick body matrix, while thering is positive effect, the addition of modified emergy to substantially increase non-burning brick compression strength non-burning brick later strength.
Description
Technical field
The invention belongs to building material technical fields, and in particular to a kind of preparation process of environment-friendly type baking-free brick.
Background technology
Iron tailings be iron ore by it is levigate, sort the industrial solid castoff generated later.Currently, the iron tailings in China
Comprehensive utilization ratio only has 7%, and volume of cargo in storage has more than ten00000000 tons, accounts for the nearly one third of whole tailings impoundment total amounts.A large amount of stockpilings
Tailing be placed in tailing dam, do not only take up large amount of land resources, bargh also needs to consumption substantial contribution and is used for tailing
The construction and maintenance on dam.In addition, the long-term accumulation of tailing, can cause great harm the soil, water body and air of surrounding.
Mineral composition and chemical composition due to iron tailings is similar to construction material, and the mineral composition of most of iron tailings is
Nonmetallic mineral, this provides necessary basis to produce construction material using iron tailings.Using iron tailings as primary raw material, Xiang Qi
The middle suitable other raw materials of admixture can prepare various materials for walls, ornament materials, cement etc. building materials.However, existing profit
Prepare in non-burning brick technique that there is also the problems that brick body compression strength is not good enough with iron tailings.
Invention content
In view of the above-mentioned problems, the present invention is intended to provide a kind of preparation process of environment-friendly type baking-free brick, to solve existing utilization
Iron tailings prepares the not good enough problem of non-burning brick compression strength.
The invention is realized by the following technical scheme：
A kind of preparation process of environment-friendly type baking-free brick, which is characterized in that include the following steps：
（1）It by 10-20 parts of emergy in parts by weight, is cleaned with water and acetone, surface impurity and greasy dirt is removed, in muffle furnace
It is dried at middle 80-120 DEG C, cooling is spare in drier；
（2）2-3 parts of Isosorbide-5-Nitrae-paraphenylene diisocyanate, 5-10 parts of polyacrylamides are added in 100-200 parts of water, are stirred to it
After being completely dissolved, step is added（1）20-30 parts of flyash are added in gains, ball milling 1-2h, and after continuing ball milling 1-2h, drying removes
Moisture is removed, flyash modified emergy is obtained；
（3）Step (2) gains are added in edge runner after rolling 50-100s and are transferred in blender, 20-40 parts of water are added
Mud, 60-100 parts of iron tailings stir 3-5min, and after obtaining mixture, water, the 0.5-1 parts of water-reducing agents of 10-15% are added, stir 4-
8min；
（4）Take appropriate step（3）Gains are poured slowly into mold, and slight jitter, which is shaken, puts down, and installs pressure head, makes it in 8-
15MPa forming under the pressure, dwell time 80-200s；
（5）It after brick is slowly demoulded, is covered with straw, stands 1-2 days under the conditions of being placed in 15-20 DEG C, spilt on straw
Water is conserved, and watering frequency conserves 25-35 days depending on brick surface wettability degree.
Further, step（2）The flyash is the powder of 200-300 mesh.
Further, step（3）The water-reducing agent is lignin sulfonic acid sodium salt water-reducing agent, aliphatic high-efficiency water reducing agent, ammonia
It is one or more in the high high efficiency water reducing agent of base, high-efficiency water-reducing agent of poly-carboxylic acid.
Further, step（3）The early strength agent is triethanolamine.
Further, step（4）The mold is the square mould that the length of side is 80-120mm.
Beneficial effects of the present invention：Using iron tailings prepare it is non-burning brick can consume a large amount of iron tailings, while can realize
Energy-saving and emission-reduction meet the needs of China's novel wall material development at this stage and " energy saving to subtract to environmental protection important in inhibiting
The policy of row "；In addition, it is relatively low to prepare non-burning brick cost using iron tailings, it can be that enterprise creates income, contribute to mine
Enterprise solves economic pressures and social pressures caused by tailing accumulation；Polyacrylamide is linear, can adsorb the powder in water
Coal ash and emergy play link bridging action between its particle, to form flyash modified emergy, after modified
The a large amount of flyash of emergy adsorption, flyash can be with Ca (OH) free in cement slurry2It reacts to form aluminium
Calcium silicates etc. has the substance of gelling, not only improves the compatibility of emergy and brick body matrix, while to after non-burning brick
Phase intensity has positive effect, the addition of modified emergy to substantially increase non-burning brick compression strength；To flyash modified rigid
Beautiful sand, which carries out rolling processing, to open its aggregate, reduce interior porosity, improve its mixing uniformity with cement；It supports
During shield, maintenance method of sprinkling water using rice straw mulching and to straw not only makes brick body temperature uniform, while straw is as water
Point transmit keep medium, effectively prevent because moisture do suddenly rapid wet bands come brick losing fangle in addition brick body cracking ask
Topic.
Specific implementation mode
Illustrate the present invention with specific embodiment below, but is not limitation of the present invention.
Embodiment 1
A kind of preparation process of environment-friendly type baking-free brick, which is characterized in that include the following steps：
（1）It by 15 parts of emergy in parts by weight, is cleaned with water and acetone, surface impurity and greasy dirt is removed, in muffle furnace
It is dried at 80 DEG C, cooling is spare in drier；
（2）2 parts of Isosorbide-5-Nitrae-paraphenylene diisocyanate, 6 parts of polyacrylamides are added in 150 parts of water, stirs to it and is completely dissolved
Afterwards, step is added（1）20 parts of flyash are added in gains, ball milling 1h, and after continuing ball milling 1h, drying removes moisture, obtains fine coal
The modified emergy of ash；
（3）Step (2) gains are added in edge runner after rolling 60s and are transferred in blender, be added 20 parts of cement, 70 parts
Iron tailings stir 3min, after obtaining mixture, be added 10% water, 0.5 part of water-reducing agent, stir 4min；
（4）Take appropriate step（3）Gains are poured slowly into mold, and slight jitter is shaken flat, installs pressure head, make its
12MPa forming under the pressure, dwell time 130s；
（5）It after brick is slowly demoulded, is covered with straw, 1 day is stood under the conditions of being placed in 18 DEG C, sprinkling water on straw carries out
Maintenance, watering frequency conserve 26 days depending on brick surface wettability degree.
Further, step（2）The flyash is the powder of 200 mesh.
Further, step（3）The water-reducing agent is lignin sulfonic acid sodium salt water-reducing agent.
Further, step（3）The early strength agent is triethanolamine.
Further, step（4）The mold is the square mould that the length of side is 80mm.
Comparative example 1
Compared with Example 1, the addition of emergy is eliminated, method and step all same in addition to this.
Comparative example 2
Compared with Example 1, the modifying processing step of emergy is eliminated, method and step all same in addition to this.
The compression strength of embodiment 1 and comparative example 1,2 finished products is tested, specific correction data such as following table
Shown in 1：
Table 1
| Compression strength MPa | |
| Embodiment 1 | 35.24 |
| Comparative example 1 | 21.75 |
| Comparative example 2 | 25.36 |
As can be seen from Table 1, emergy is modified and is adulterated with flyash, substantially increase non-burning brick compression strength,
So a kind of preparation process of environment-friendly type baking-free brick provided by the invention, environmentally protective, non-burning brick function admirable.
Claims (5)
1. a kind of preparation process of environment-friendly type baking-free brick, which is characterized in that include the following steps：
（1）It by 10-20 parts of emergy in parts by weight, is cleaned with water and acetone, surface impurity and greasy dirt is removed, in muffle furnace
It is dried at middle 80-120 DEG C, cooling is spare in drier；
（2）2-3 parts of Isosorbide-5-Nitrae-paraphenylene diisocyanate, 5-10 parts of polyacrylamides are added in 100-200 parts of water, are stirred to it
After being completely dissolved, step is added（1）20-30 parts of flyash are added in gains, ball milling 1-2h, and after continuing ball milling 1-2h, drying removes
Moisture is removed, flyash modified emergy is obtained；
（3）Step (2) gains are added in edge runner after rolling 50-100s and are transferred in blender, 20-40 parts of water are added
Mud, 60-100 parts of iron tailings stir 3-5min, after obtaining mixture, water, the 0.5-1 parts of water-reducing agents of 10-15% are added, 1-2 parts early
4-8min is stirred in strong agent；
（4）Take appropriate step（3）Gains are poured slowly into mold, and slight jitter, which is shaken, puts down, and installs pressure head, makes it in 8-
15MPa forming under the pressure, dwell time 80-200s；
（5）It after brick is slowly demoulded, is covered with straw, stands 1-2 days under the conditions of being placed in 15-20 DEG C, spilt on straw
Water is conserved, and watering frequency conserves 25-35 days depending on brick surface wettability degree.
2. a kind of preparation process of environment-friendly type baking-free brick according to claim 1, which is characterized in that step（2）The powder
Coal ash is the powder of 200-300 mesh.
3. a kind of preparation process of environment-friendly type baking-free brick according to claim 1, which is characterized in that step（3）It is described to subtract
Aqua is lignin sulfonic acid sodium salt water-reducing agent, aliphatic high-efficiency water reducing agent, the high high efficiency water reducing agent of amino, high-efficiency water-reducing agent of poly-carboxylic acid
In it is one or more.
4. a kind of preparation process of environment-friendly type baking-free brick according to claim 1, which is characterized in that step（3）The morning
Strong agent is triethanolamine.
5. a kind of preparation process of environment-friendly type baking-free brick according to claim 1, which is characterized in that step（4）The mould
Tool is the square mould that the length of side is 80-120mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810553689.9A CN108424062A (en) | 2018-06-01 | 2018-06-01 | A kind of preparation process of environment-friendly type baking-free brick |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810553689.9A CN108424062A (en) | 2018-06-01 | 2018-06-01 | A kind of preparation process of environment-friendly type baking-free brick |
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| CN108424062A true CN108424062A (en) | 2018-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810553689.9A Pending CN108424062A (en) | 2018-06-01 | 2018-06-01 | A kind of preparation process of environment-friendly type baking-free brick |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824055A (en) * | 2019-04-04 | 2019-05-31 | 河北工业大学 | The method for preparing nano-sheet zinc silicate compound adsorbent using iron tailings |
| CN111747678A (en) * | 2019-03-29 | 2020-10-09 | 温州桂森环境科技有限公司 | Preparation process of environment-friendly baking-free brick |
| CN113083851A (en) * | 2021-03-30 | 2021-07-09 | 湖北工业大学 | Method for improving municipal solid waste incineration bottom slag by using isocyanate/polyol slurry and application of method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101891418A (en) * | 2010-06-30 | 2010-11-24 | 黄利辉 | Surface material for manufacturing wear-resistant floor tile and floor tile |
| CN102491694A (en) * | 2011-12-09 | 2012-06-13 | 北京新航建材集团有限公司 | Self-compacting concrete and preparation method thereof |
| CN105272027A (en) * | 2015-09-23 | 2016-01-27 | 江苏苏博特新材料股份有限公司 | Ultra-high performance concrete with compressive strength of 300MPa or more and preparation method |
| CN106242408A (en) * | 2016-08-17 | 2016-12-21 | 明光市凯旋新型建材厂 | A kind of iron tailings prepares non-burning brick technique |
| CN106277986A (en) * | 2016-08-17 | 2017-01-04 | 明光市凯旋新型建材厂 | A kind of non-burning brick preparation method |
-
2018
- 2018-06-01 CN CN201810553689.9A patent/CN108424062A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101891418A (en) * | 2010-06-30 | 2010-11-24 | 黄利辉 | Surface material for manufacturing wear-resistant floor tile and floor tile |
| CN102491694A (en) * | 2011-12-09 | 2012-06-13 | 北京新航建材集团有限公司 | Self-compacting concrete and preparation method thereof |
| CN105272027A (en) * | 2015-09-23 | 2016-01-27 | 江苏苏博特新材料股份有限公司 | Ultra-high performance concrete with compressive strength of 300MPa or more and preparation method |
| CN106242408A (en) * | 2016-08-17 | 2016-12-21 | 明光市凯旋新型建材厂 | A kind of iron tailings prepares non-burning brick technique |
| CN106277986A (en) * | 2016-08-17 | 2017-01-04 | 明光市凯旋新型建材厂 | A kind of non-burning brick preparation method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111747678A (en) * | 2019-03-29 | 2020-10-09 | 温州桂森环境科技有限公司 | Preparation process of environment-friendly baking-free brick |
| CN109824055A (en) * | 2019-04-04 | 2019-05-31 | 河北工业大学 | The method for preparing nano-sheet zinc silicate compound adsorbent using iron tailings |
| CN109824055B (en) * | 2019-04-04 | 2022-06-07 | 河北工业大学 | Method for preparing nano flaky zinc silicate composite adsorbent by using iron tailings |
| CN113083851A (en) * | 2021-03-30 | 2021-07-09 | 湖北工业大学 | Method for improving municipal solid waste incineration bottom slag by using isocyanate/polyol slurry and application of method |
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Application publication date: 20180821 |
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